(function(window,document){
    var hearts = [];
    window.requestAnimationFrame = (function(){
    return window.requestAnimationFrame ||
    window.webkitRequestAnimationFrame ||
    window.mozRequestAnimationFrame ||
    window.oRequestAnimationFrame ||
    window.msRequestAnimationFrame ||
    function (callback){ setTimeout(callback,1000/60); }
    })();
    init();
    function init(){
    css(".heart{width: 10px;height: 10px;position: fixed;background: #f00;transform: rotate(45deg);-webkit-transform: rotate(45deg);-moz-transform: rotate(45deg);}.heart:after,.heart:before{content: '';width: inherit;height: inherit;background: inherit;border-radius: 50%;-webkit-border-radius: 50%;-moz-border-radius: 50%;position: absolute;}.heart:after{top: -5px;}.heart:before{left: -5px;}");
    attachEvent();
    gameloop();
    }
    function gameloop(){
    for(var i=0;i<hearts.length;i++){
    if(hearts[i].alpha <=0){ document.body.removeChild(hearts[i].el); hearts.splice(i,1); continue; }
    hearts[i].y--;
    hearts[i].scale += 0.004;
    hearts[i].alpha -= 0.013;
    hearts[i].el.style.cssText = "left:"+hearts[i].x+"px;top:"+hearts[i].y+"px;opacity:"+hearts[i].alpha+";transform:scale("+hearts[i].scale+","+hearts[i].scale+") rotate(45deg);background:"+hearts[i].color;
    }
    requestAnimationFrame(gameloop);
    }
    function attachEvent(){ var old = typeof window.onclick==="function" && window.onclick; window.onclick = function(event){ old && old(); createHeart(event); } }
    function createHeart(event){ var d = document.createElement("div"); d.className = "heart"; hearts.push({ el : d, x : event.clientX - 5, y : event.clientY - 5, scale : 1, alpha : 1, color : randomColor() }); document.body.appendChild(d); }
    function css(css){ var style = document.createElement("style"); style.type="text/css"; try{ style.appendChild(document.createTextNode(css)); }catch(ex){ style.styleSheet.cssText = css; } document.getElementsByTagName('head')[0].appendChild(style); }
    function randomColor(){ return "rgb("+(~~(Math.random()*255))+","+(~~(Math.random()*255))+","+(~~(Math.random()*255))+")"; }
    })(window,document);